servo

• Fix for batch size when using cloudwatch observer.

A comprehensive list of changes can be found on https://github.com/Netflix/servo/compare/v0.12.1...v0.12.2

• totalOfSquares statistic replaces the 'min' gauge in BasicTimer
• servo-apache adds new metrics tracking connections
• fix race conditions in DoubleGauge and LongGauge
• ignore unregister twice errors in JmxMonitorRegistry

A comprehensive list of changes can be found on https://github.com/Netflix/servo/compare/v0.11.5...v0.12.0

Try and ensure deregistered StatsTimers will actually be garbage collected.

Update servo-apache to use a whitelist based approach to finding metrics. This makes it compatible with the latest apache releases.

A comprehensive list of changes can be found in the commit log: v0.11.3...v0.11.4

Adds a method: boolean ValidCharacters#hasInvalidCharacters(String str) to servo-atlas.

Primary changes:

• Fix for #345, incorrect bucket getting updated if bucket units were not the same as the timer unit.

A comprehensive list of changes can be found in the commit log: https://github.com/Netflix/servo/compare/v0.11.1...v0.11.2

Primary changes:

• Use travis for snapshot and release builds.

A comprehensive list of changes can be found in the commit log: https://github.com/Netflix/servo/compare/v0.11.0...v0.11.1

Bug fix: the thread cpu daemon responsible for collecting cpu stats is now correctly set be a daemon thread.

• Significant improvements in memory usage in MonitorConfigs: SmallTagMap is using a more efficient representation in memory.
• Fixes a concurrency problem in SmallTagMap#equals (used by BasicTagList, which is used by MonitorConfig).

Adds a servo-tomcat project: a poller that produces tomcat metrics.
Some bug fixes in JmxMetricPoller.

Same as v0.8.2 (just needed to fix some problems related to publishing the artifacts).

Add metrics to the cloudwatch observer:

• servo.cloudwatch.metrics: number of metrics published to cloudwatch
• servo.cloudwatch.errors: number of cloudwatch errors (includes additional tag to include the error type)
• servo.cloudwatch.puts: timer that measures how long it takes to publish metrics

Internal changes only:

• Switched to new build system based on gradle 2.2
• Updated aws sdk dependencies to 1.9.16
• Documentation updates
• Minor style fixes

• Updated aws sdk dependency to only depend on the cloudwatch and autoscaling jars.
• Replaced the majority of guava uses with internal implementations.
• Minor updates so servo can be compiled on jdk8.

• New DataSourceType: NORMALIZED used to indicate that a counter reports a rate per second normalized to a step boundary.
• Performance improvements to BasicTag#hashCode()
• Update slf4j and aws-java-sdk dependencies to slf4j-api:1.7.7 and aws-java-sdk:1.8.9.1

• Update aws sdk dependency for servo-aws to 1.8.7.
• LongGauge and DoubleGauge return the primitive value instead of the atomic number so it can be displayed by JMX viewers and the value doesn't change after it's been polled.
• (Internal) Gradle updated to 1.12.

• Reconnect to graphite after connection errors
• BasicTimer and BasicDistributionSummary record values that are >= 0
• Internal cleanup (checkstyle fixes + creation of servo-internal project to reduce warnings).

• Bug fix: Adds the missing method StatsMonitor#getValue()
• Performance improvement to StepLong#poll().
• Monitors.newCounter() returns a BasicCounter.

• Significant performance improvement by using a custom map optimized for a small number of tags in BasicTagList. This is particularly noticeable when you have lots of metrics.

• BasicTagList#asMap() now returns a SortedMap for backwards compatibility.
• Removes the deprecated ConfigSanitizer feature.